JP6336375B2 - Discharge method of cylindrical bag body filling and bag opening device for filling bag body - Google Patents

Description

  The present invention relates to a method for discharging a cylindrical bag body and a bag opening device for a filled bag body, and more particularly, by opening a filling bag body in which a cylindrical bag body is filled with a granular filler such as a granular body. The present invention also relates to a method for discharging a cylindrical bag body and a bag opening device for the filling bag body that discharges the filling material in the filling bag body from an opening.

The granular material is filled in a cylindrical bag and is distributed as a filled bag. The filled bag body is transported to the factory or business office that uses the granular material, and in the factory or business office, the bag body is cut with a cutter, or the opening cut tape provided in the bag is drawn in advance for opening the bag. Thus, the granular material that has been opened and filled therein is discharged from the cylindrical bag and put into a hopper, a machine, or the like.
These bag opening operations are automatic and can be used in large-scale factories and offices to improve the work environment by preventing heavy dusts and dust generation, and for efficient operation. A bag opening device that can be used in an apparatus (see Patent Document 1), a small-scale or large-scale factory or office has been proposed.

Patent Document 1 discloses a belt conveyor that transports a packaging bag containing powder particles, a cutter that rotates on one side of the belt conveyor and cuts one end portion of the packaging bag, and a cut end of the packaging bag. Pusher that pushes out so that the front part is forward, and a rotating fork that waits in front of the packaging bag, and after the packaging bag is pushed in by pushing out the pusher, it can rotate to turn over the packaging bag and discharge particulate matter An automatic bag-opening device including the above is disclosed.
In the technique disclosed in Patent Document 1, there is no breakage in the lateral cutting of one end portion of the packaging bag by the cutter, the efficiency of taking out the granular material is extremely high, and one end portion of the empty bag is cut in the lateral direction. Therefore, it is said that there is an excellent effect that the form as a bag is maintained as it is and can be used for secondary use.

The “bag cutting device” disclosed in Patent Document 2 has a transfer path composed of a horizontal portion and a downward inclined path on which a bag filled with powder slides, and a tip fixed to the lower part of the inclined path of the transfer path. And a cage-shaped holding tool disposed at a certain distance from the transfer path, and the cage-type holding tool enters the bag sliding on the transfer path, opens the bag, and supports the inner surface thereof. To help discharge the powder and hold the empty bag. Patent Document 2 also discloses that the horizontal portion of the transfer path is formed by a belt conveyor, and that the bag is inserted into the horizontal holding tool from its open tip, and then the holding tool is rotated. Yes.
In the technique disclosed in Patent Document 2, since the holder has a cage shape, air and powder can be easily replaced, and the powder in the bag can be smoothly dropped and discharged from the opening. Since the empty bag is caught by the holder and held without falling, the empty bag removed from the holder is not damaged and can be recycled as it is.

Japanese Utility Model Publication No. 58-133505 Japanese Utility Model Publication No. 6-39800

By the way, when the technique disclosed in Patent Document 1 is used, the packaging bag transfer direction by the belt conveyor and the extrusion direction of the packaging bag pushed into the rotating fork by the pusher are orthogonal to each other. Since the transfer distance of the apparatus increases, the apparatus becomes large, and there is a problem that the space for installing the automatic bag opening apparatus increases.
Moreover, in the technique disclosed in Patent Document 1, since one end of the packaging bag is cut in the horizontal direction by the cutter and the cut piece is cut off, the cut piece must be processed separately from the empty bag. was there.
Furthermore, the rotating fork is pushed into the packaging bag and the rotating fork is turned to turn the packaging bag upside down to discharge the particulate matter. However, just by pushing the rotating fork, the space inside the packaging bag is removed. Because it cannot be expanded, it takes time to drop the granular material from the inside of the packaging bag, it is difficult to increase the opening capacity, and the granular material remains in the packaging bag, forcing the opening of the bag. There is a problem that increasing the capacity increases residual powder.

Moreover, since the technique disclosed in Patent Document 2 is intended for a bag whose tip is opened by pulling an opening cut tape provided in advance for opening the bag, separately from the empty bag. There is a problem that the cut tape has to be processed, and since it is not an automatic bag opening process, it takes time to open the bag, and the bag opening process becomes complicated, resulting in low bag opening processing capacity. There was a problem.
In addition, in the technique disclosed in Patent Document 2, if the technique disclosed in Patent Document 1 is combined to increase the bag opening processing capacity, it is impossible to prevent powder particles from remaining in the packaging bag. When the bag processing capacity is increased, there is a problem of increasing the residual powder.

  The object of the present invention is to make it possible to extremely reduce or eliminate the residue of a filler such as a granular material in an empty bag even in a high-speed bag opening process, and to add a granular filler to a cylindrical bag. It is possible to eliminate the need to generate a cut piece that has been cut off in the opening of the filled bag body and to process the cut piece separately from the empty bag body, and only to supply the filled bag body to the transfer path, It is possible to automatically open the filling bag body, discharge the filling inside, remove the empty bag body and collect it, and to show the high bag opening processing capacity. An object of the present invention is to provide a discharging method and a bag opening device for a filled bag body.

  As a result of intensive studies to achieve the above object, the present inventors have performed an automatic high-speed bag opening process of 400 bags / h (hours) or more with the conventional bag opening technology as described above. For example, it has been found that approximately 5% of the powder particles remain in the empty bag, and that it is necessary to treat the cut pieces cut off when opening the filled bag separately from the empty bag. This has led to the present invention.

  That is, the discharge method of the cylindrical bag body filling according to the first aspect of the present invention is a transfer table for transferring the cylindrical bag body in a predetermined transfer direction while sliding the filling bag body filled with the granular filler. A supply step of supplying a filling bag body on the starting end of the bag and a holding means holds the filling bag body supplied in the supply step from both side surfaces in the transfer direction and is orthogonal to the transfer direction. A holding step of positioning and holding in the orthogonal direction on the transfer table from one side of the transfer table, and the transfer table positioned by the holding means and held by the transfer means installed above the holding means A transfer process for sliding in the transfer direction while sliding, and an opening blade is used to open the end face on the other side surface in the orthogonal direction of the filling bag body being transferred so that the end face remains as a lid-like body. A rotating step of rotating the filled bag body held by the holding means together with the holding means so that the other side surface of the filling bag body opened in the opening process faces the downstream side in the transfer direction, and rotation A rotating step of rotating the lid of the filling bag rotated in the process upward with respect to the transfer surface of the transfer table to form an opening; and a filling bag formed with the opening by the transfer means An insertion step of transferring in the transfer direction and inserting the filling bag body into a cage-type holder installed downstream from the opening to a depth set in advance, and a cage-type holder in the insertion step The basket-type holder is rotated by a predetermined angle so that the opening of the inserted filling bag body faces substantially downward, and the filling material is discharged from the opening through the opening process. A cage-type product inserted in the empty bag And a bag body removing step of removing the bag body from the cage holder by further rotating the holder and removing the bag body.

  Here, the holding means is installed above the transfer table, holds the filling bag body from above, and is installed in the transfer means and moved in the transfer direction by the transfer means. A first pusher that pushes one side of the bag, a second pusher that pushes one of two sides perpendicular to the one side of the filling bag, and the other of the two sides of the filling bag A third pusher that pushes the side surface of the bag, and in the holding step, the first pusher pushes one side surface while touching one side surface in the direction orthogonal to the transfer direction of the filling bag body, thereby moving the transfer table. A first positioning sub-process for positioning in the orthogonal direction on the upper side, and the insertion process is performed by touching at least one of the two side surfaces along the transfer direction of the filling bag body with the second pusher and the third pusher. At least one of the sides By moving, the filling bag body is positioned on the transfer table so that the center of the filling bag body after the rotation process of rotating the filling bag body by 90 ° is aligned with the center of the transfer table along the transfer direction. It is preferable to have two positioning substeps.

Moreover, it is preferable that the 1st pusher, the 2nd pusher, and the 3rd pusher have the pressing member respectively pressed by one side of the filling bag body, and the two side surfaces of the filling bag body at each front-end | tip.
Moreover, it is preferable that a holding means is installed above a transfer table, and can adjust the height from a transfer table.
The holding means is preferably installed above the transfer table and sucks and holds the filled bag body from above.

Moreover, the bag body removing step further rotates the cage holder inserted in the bag body in which the filling is empty, and jets compressed air from the cage holder to hold the cage shape. It is preferable to remove and remove the bag from the tool.
Moreover, it is preferable that the squirrel cage has a curved ship shape.
The opening blade is preferably a motor-driven circular rotary blade.

In the opening process, it is preferable to determine the opening amount for opening the filling bag body by moving the opening blade up and down with respect to the transfer table and keeping the relative position of the opening blade with respect to the upper surface of the filling bag body constant.
Moreover, in the opening process, it is preferable to measure the thickness of the filling bag body by a distance meter that measures the distance in the vertical direction with respect to the transfer table, and to determine the vertical movement amount of the opening blade.
In the rotation step, it is preferable to adsorb the lid-like body of the filling bag body and rotate it upward, for example, 90 ° or more to a position where there is no obstacle to the insertion of the cage holder.

  In order to achieve the above object, a bag opening device for a filling bag body according to a second aspect of the present invention opens a filling bag body in which a cylindrical bag body is filled with a granular filler, and fills the bag. A bag opening device for discharging a filling in a body from an opening of a filling bag body, which is supplied on a transfer table for sliding the filling bag body in a predetermined transfer direction while sliding the filling bag body, and on a starting end portion of the transfer table Holding means for holding the filled bag body from both side surfaces in the transfer direction and positioning and holding in the orthogonal direction on the transfer table from one side surface in the orthogonal direction orthogonal to the transfer direction; A transfer means that is installed above the holding means and that is positioned and held by the holding means and that moves in the transfer direction while sliding on the transfer table, and a direction perpendicular to the filling bag body that is being transferred by the transfer means Cut on the end of the other side of the An unsealing means for unsealing so that the end face remains as a lid-like body, and a holding means together with the holding means so that the other side surface of the filling bag body opened by the unsealing means faces downstream in the transfer direction. Rotation means for rotating the held filling bag body by 90 °, and rotation for forming an opening by turning the lid-like body of the filling bag body rotated by the rotation means upward with respect to the transfer surface of the transfer table The filling bag body, which is installed on the downstream side of the means and the transfer table and has the opening opening formed therein, is transferred in the transfer direction by the transfer means and inserted from the opening opening of the filling bag body to a preset depth. The cage-type holder is rotated by a predetermined angle so that the opening of the bag-type holder and the filling bag body into which the cage-type holder is inserted faces substantially downward, and the filling in the bag body is discharged from the opening port. Ejection means and filling material by ejection means And a bag body removing means for removing the bag body from the cage holder and removing it by further rotating the cage holder inserted into the empty bag body.

  Here, the holding means is installed above the transfer table, holds the filling bag body from above, and is installed in the transfer means and moved in the transfer direction by the transfer means. A first pusher that pushes one side of the bag, a second pusher that pushes one of two sides perpendicular to the one side of the filling bag, and the other of the two sides of the filling bag A third pusher that pushes the side surface of the bag, and the first pusher pushes one side surface while touching one side surface in the direction perpendicular to the transfer direction of the filling bag body, thereby orthogonally moving on the transfer table. And at least one of the two side surfaces is pushed while touching at least one of the two side surfaces along the transfer direction of the filling bag body after being rotated 90 ° by the second pusher and the third pusher. By the filling bag That is preferable to position the packing bag on the transfer table such that the center of the packing bag after rotating 90 ° fits in the center of the transfer table along the transport direction.

Moreover, it is preferable that the 1st pusher, the 2nd pusher, and the 3rd pusher have the pressing member respectively pressed by one side of the filling bag body, and the two side surfaces of the filling bag body at each front-end | tip.
Moreover, it is preferable that a holding means is installed above a transfer table, and can adjust the height from a transfer table.
Moreover, it is preferable that the holding means has an adsorption holding means that is installed above the transfer table and sucks and holds the filled bag body from above.

Further, the bag body removing means further rotates the cage holder inserted in the bag body in which the filling is emptied, and blows out compressed air from the cage holder to remove the cage from the cage holder. It is preferable to remove and remove the bag.
Moreover, it is preferable that the squirrel cage has a curved ship shape.
The opening blade is preferably a motor-driven circular rotary blade.

The unsealing means has an up-and-down moving means for moving the unsealing blade up and down relative to the transfer table. The opening blade is moved up and down by the up-and-down moving means so that the relative position of the unsealing blade with respect to the upper surface of the filling bag body is fixed. It is preferable to determine an opening amount for opening the bag.
Further, the opening means has a distance meter for measuring the distance in the vertical direction with respect to the transfer table, and a vertical movement means for moving the opening blade up and down with respect to the transfer table, and measures the thickness of the filling bag body with the distance meter, It is preferable to determine the vertical movement amount of the opening blade by the vertical movement means.
Further, the rotating means includes an adsorbing means for adsorbing the lid-like body of the filling bag body, and the lid-like body adsorbed by the adsorbing means is, for example, 90 ° or more to a position where there is no obstacle to insertion of the cage holder It is preferable to rotate it upward.

According to the present invention, even in the high-speed bag opening process, it is possible to extremely reduce or eliminate the residue of a filler such as a granular material in an empty bag.
Further, according to the present invention, there is a need to generate cut pieces that are cut off when opening a filled bag body in which a cylindrical bag body is filled with a granular filler, and to process the cut pieces separately from the empty bag body. Can be eliminated.
Further, according to the present invention, it is possible to automatically open the filling bag body by discharging the filling bag body by simply supplying the filling bag body to the transfer path, and to remove and collect the empty bag body. it can.
Moreover, according to this invention, all the processes of the bag opening process of a filling bag body can be performed with the transfer path extended in one direction, and the various process means and processing apparatus which were arrange | positioned in a line on the straight line of the extension. . In other words, according to the present invention, since the entire bag opening process can be performed while the filled bag body is transferred on the transfer path and its extension, a high bag opening processing capability can be exhibited.

It is a perspective view which shows typically schematic structure of an example of the bag opening apparatus of the filling bag body which concerns on one Embodiment of this invention. It is a typical side view of the bag opening apparatus of the filling bag body shown in FIG. (A)-(C) is a top view which shows typically an example of the operation | movement which the filling bag body continues in the bag opening apparatus of the filling bag body shown in FIG. 1, respectively. (A)-(C) is a perspective view which shows typically an example of the operation | movement which the filling bag body continues with respect to the cage-type holder of the bag opening apparatus shown in FIG. 1, respectively. (D)-(E) is a perspective view which shows typically an example of the operation | movement which the filling bag body continues with respect to the cage-type holder shown in FIG. 1, respectively. It is a flowchart which shows the flow of an example of the discharge method of the cylindrical bag body filling which concerns on one Embodiment of this invention.

Below, the discharge method of the cylindrical bag body filler which concerns on this invention, and the bag opening apparatus of a filling bag body are demonstrated in detail based on suitable embodiment shown to attached drawing.
In the present specification, the method for discharging the cylindrical bag filling according to the present invention, the components of the bag opening device for the filling bag, the operation thereof, and the steps performed will be described with reference to the accompanying drawings. In the drawings, components necessary for explanation for facilitating the understanding of the present invention, their functions and processes are selected and their sizes are changed, and the actual apparatus configuration, its functions and processes are described. Of course, this is not a faithful description and is not limited to those described in these drawings.

First, a filling bag body opening device for carrying out the method for discharging a cylindrical bag filling according to the present invention will be described.
FIG. 1 is a perspective view showing a schematic configuration of an example of a bag opening device for a filled bag according to an embodiment of the present invention. FIG. 2 is a side view of the bag opening device for the filling bag shown in FIG. FIGS. 3A to 3C are top views schematically showing an example of a state of continuous operation of the filling bag body in the bag opening device for the filling bag body shown in FIG. 1. 4 (A) to 4 (C) and FIGS. 5 (D) to 5 (E) are schematic examples of the continuous operation of the cage-type holder of the bag opening device for the filling bag shown in FIG. FIG.

  As shown in FIGS. 1 and 2, a filling bag body opening device (hereinafter simply referred to as a bag opening device) 10 according to the present invention is a filling bag body 12 (a cylindrical bag body filled with a granular filler) ( (See FIG. 3), a bag opening device for automatically performing a bag opening process by discharging the filling material in the filling bag body 12 from the opening of the filling bag body 12, and the supplied filling bag The transfer table 14 is moved while the body 12 is slid, the two rails 16 are laid along both sides of the transfer table 14, and runs on the two rails 16 while holding the filling bag body 12. The filling bag 12 is moved in a predetermined transfer direction a while sliding on the transfer table 14, and the opened filling bag 12 is rotated by 90 ° with respect to the transfer table 14, that is, the transfer direction a. Body transfer device (hereinafter simply referred to as transfer device) 18 and transfer device 18 Filled with a rotary cutter 20 that opens with a cut in one side of the held filling bag body 12, a cage-type holder 24 that is inserted into the filling bag body 12 through the opening, and a cage-type holder 24 A rotation mechanism 26 of the cage holder 24 that rotates to an angle at which the filling in the bag body 12 is discharged from the opening, and an angle at which the empty bag body is discharged from the cage holder. Have.

The filling bag body 12 is a cylindrical bag body filled with a granular filler. The particulate filler is not particularly limited, and can be known grains such as wheat, grains such as wheat flour, and known powders such as mineral powder such as cement. Further, the cylindrical bag body is not particularly limited, and examples thereof include known bag bodies such as a bag body used for storing the above-described powder body, for example, a PV bag (Pasted Valve Type Sack). it can.
In the present invention, even if the filling bag body 12 has a different size (size), the bag opening process of the filling bag body 12 can be automatically performed in the same manner.

The transfer table 14 has a sliding surface 14c extending in one direction from the start end portion 14a to the rear end portion 14b, and slides the filling bag body 12 supplied on the start end portion 14a along the slide surface 14c. It is for transferring in the transfer direction indicated by arrow a in the figure. Here, it is preferable that the sliding surface 14c is constituted by a surface having a small frictional resistance so that the filling bag body 12 slides smoothly.
In the present invention, at the starting end portion 14 a of the transfer table 14, the filling bag body 12 has a longitudinal direction of the filling bag body 12, for example, so that the side surface on the unsealing side is parallel to the transfer direction a of the transfer table 14. Supplied on the transfer table 14 in a state parallel to the orthogonal direction b orthogonal to the transfer direction a. The supplied filling bag 12 is transferred as it is on the transfer table 14 in the transfer direction a, and after one side surface is opened, it is rotated 90 ° with respect to the transfer direction a on the transfer table 14. . Next, the opened filling bag body 12 rotated by 90 ° has the opening side surface parallel to the orthogonal direction b, for example, the transfer table 14 in a state where the longitudinal direction of the filling bag body 12 is parallel to the transfer direction a. It is transferred in the transfer direction a.
The filling bag body 12 may be supplied or placed on the sliding surface 14c of the starting end portion 14a of the transfer table 14 by an operator (operator) of the bag opening device 10, or a supply device such as a robot. May be used.

The two rails 16 are laid on both sides of the sliding surface 14c of the transfer table 14 from the start end portion 14a to the rear end portion 14b, and are used for traveling four wheels 28 of the transfer device 18 described later. .
Here, the two rails 16 are laid on both sides of the transfer table 14, but the present invention is not limited to this, and when the transfer device for the filling bag body is suspended, It may be installed above.

  The transfer device 18 is for transferring the filling bag body 12 supplied on the sliding surface 14c of the start end portion 14a of the transfer table 14 in the transfer direction a while sliding on the sliding surface 14c of the transfer table 14. By installing four wheels 28 traveling on the two rails 16, a carriage 30 supported by the four wheels 28, and between each of the four wheels 28 and the carriage 30, and changing the length thereof Four carriage height adjusting means 22 that can adjust the height of the carriage 30 with respect to the transfer table 14, a means for moving the carriage 30 in the transfer direction a (not shown), and a transfer within the side surface of the carriage 30. A first pusher 32a disposed on one side of the side surface in the orthogonal direction indicated by an arrow b orthogonal to the direction a, a second pusher 32b disposed opposite to both sides of the two side surfaces in the transfer direction a, and 3 pusher 32c, a flat pressing member 34a which is attached to the tip of the first pusher 32a and is pressed against the side surface on one side of the filling bag body 12 in the orthogonal direction b, and parallel to the transfer direction a, and the second Plate-like pressing members 34b and 34c that are respectively attached to the front ends of the pusher 32b and the third pusher 32c and are pressed against both side surfaces of the filling bag body 12 in the transfer direction a and parallel to the orthogonal direction b, and the rotary cutter 20 A rotation mechanism 36 having a suction cup (36a, see FIG. 3) for forming an opening (not shown) from the cut formed in the above, a first pusher 32a, a second pusher 32b, a third pusher 32c, and The rotation mechanism 36 is fixed and integrated, and a base 38 that is rotatably supported by the carriage 30, and is held by the carriage 30, so that the base 38, and thus the first pusher 32 a, Having two pusher 32b, which is supported by the third pusher 32c, and filled bag 12 which is opened, a motor 40 for rotating 90 ° to carriage 30 thus transferring table 14, and.

The four wheels 28, the four cart height adjusting means 22 and the cart 30 are configured so that the first pusher 32 a, the second pusher 32 b, the third pusher 32 c, and the motor 40, that is, the base 30, are transferred to the first pusher. 32a, the second pusher 32b, and the third pusher 32c positioned and held by the filling bag body 12 are slid on the transfer table 14 and transferred in the transfer direction a. It constitutes.
The carriage 30 is open at the bottom and is installed above a base 38 that supports the first pusher 32a, the second pusher 32b, the third pusher 32c, and the rotation mechanism 36. For example, the cart 30 has a rectangular plate shape. It may be a structure formed of a frame formed of a solid or hollow rod-shaped body.
Although not shown, the moving means of the carriage 30 is for moving the carriage 30 in the transfer direction a by running on the two rails 16 by the four wheels 28, and is not particularly limited. For example, it has a ROBO cylinder (trademark) manufactured by IAI Corporation, a drive source such as a motor, and transmission means for moving the carriage 30, for example, a transmission mechanism such as a rack and pinion, a pulley, and an endless belt.

When the first pusher 32a, the second pusher 32b, and the third pusher 32c are transferred in the transfer direction a while sliding the filling bag body 12 on the sliding surface 14c of the transfer table 14, the first pusher 32a, the second pusher 32b, The holding of the present invention which positions and holds the orthogonal direction b and the transfer direction a on the transfer table 14 from one side surface in the orthogonal direction b (the side opposite to the unsealing side) and the both side surfaces in the transfer direction a. It constitutes a means.
The first pusher 32a rotates the side of the filling bag body 12 on the side facing the first pusher 32a, that is, the other side in the orthogonal direction b, from the filling bag body 12 supplied onto the starting end portion 14a of the transfer table 14. For example, if the filling bag body 12 has the same size so as to be in a position where a cut (cut) is made by the cutter 20, one of the filling bag bodies 12 in the orthogonal direction b is always set to the same predetermined position. The pressing member 34a is pressed against the side surface of the side and pushed to position the filling bag body 12 in the orthogonal direction b, and one side of the filling bag body 12 in the orthogonal direction b is pressed by the pressed pressing member 34a. It is for holding the side surface of the side.

The second pusher 32b and the third pusher 32c are arranged so that when the opened filling bag body 12 is rotated by 90 °, the center of the filling bag body 12 passes through the center of the transfer table 14 along the transfer direction a. For example, a center line along the longitudinal direction of the filling bag body 12, that is, a center line passing through the center of the orthogonal direction b and parallel to the transfer direction a is aligned with the center line of the transfer table 14 along the transfer direction a. Then, at least one of the pressing members 34b and 34c is pressed against the side surfaces on both sides of the filling bag body 12 in the transfer direction a, respectively, and the filling bag body 12 is positioned in the orthogonal direction b and pressed together. The side surfaces of both sides of the filling bag body 12 in the orthogonal direction b are held by the pressed members 34b and 34c.
Even in the filling bag body 12 before the 90 ° rotation, the center of the filling bag body 12 in the orthogonal direction b may be positioned by the second pusher 32b and the third pusher 32c.
Here, the first pusher 32a, the second pusher 32b, and the third pusher 32c have a force that can push and hold the side surfaces of the filling bag body 12 by the pressing members 34a, 34b, and 34c, respectively. However, for example, an actuator such as an air cylinder or a hydraulic cylinder is preferably used.

The pressing members 34a, 34b, and 34c are formed of a rectangular flat plate, but may be anything as long as each side surface of the filling bag body 12 can be pushed and held.
Thus, as shown in FIG. 3A, the filling bag body 12 is positioned and held on the transfer table 14 from the side surfaces in the three directions by the pressing members 34a, 34b, and 34c.
Note that a rotation mechanism 36 having a plurality of suction cups 36a is provided in one of the remaining orthogonal directions b, as will be described later.

The four carriage height adjusting means 22 are respectively installed between the four wheels 28 and the carriage 30 and support the carriage 30 so as to be movable up and down with respect to the four wheels 28. The four carriage height adjusting means 22 may be any vertical movement means that can adjust the height of the carriage 30 by moving the carriage 30 up and down, such as an air cylinder or a hydraulic cylinder. Examples include actuators, rack and pinions, and transmission mechanisms such as pulleys and endless belts.
Since the carriage 30 includes the carriage height adjusting means 22 that is a vertical movement means for the transfer table 14, the height of the carriage 30 relative to the transfer table 14 is adjusted in the carriage 30 by the carriage height adjusting means 22. Accordingly, it is preferable to move up and down together with the carriage 30. That is, the carriage 30 is moved upward so that the first, second and third pushers 32a, 32b and 32c and the pressing members 34a, 34b and 34c are positioned higher than the thickness of the filling bag body 12 together with the base 38. In this state, the carriage 30 is moved to the upper side of the filling bag body 12 supplied on the sliding surface 14c of the starting end portion 14a of the transfer table 14, and then the carriage 30 is moved downward. The filling bag body 12 can be held from three directions by moving and lowering the first, second and third pushers 32a, 32b and 32c and the pressing members 34a, 34b and 34c together with the base 38. Can be.

The base 38 is for fixing and integrating the first pusher 32a, the second pusher 32b, the third pusher 32c, and the rotation mechanism 36, and is rotatable by 90 ° with respect to the carriage 30. Supported. Here, it is preferable that the center of the base 38 and the center of the carriage 30 are configured to coincide with each other. The base is installed under the carriage 38 and the carriage 30 and may be, for example, a rectangular plate-shaped object, or a structure composed of a frame composed of a solid or hollow rod-shaped body. .
The base 38 is provided with the same vertical movement means instead of the cart height adjustment means 22 or in addition to the cart height adjustment means 22 so that the base 38 can be moved up and down with respect to the carriage 30. You may comprise so that it may support. By providing the base 38 with vertical movement means for the carriage 30, the same function can be given to the first, second and third pushers 32a, 32b and 32c and the pressing members 34a, 34b and 34c. it can.

Although not shown, the base 38 preferably has a suction holding mechanism that sucks from the upper surface side of the filling bag body 12 and sucks and holds the upper surface of the filling bag body 12 on the lower surface thereof. . Thus, by having the suction holding mechanism for holding the upper surface of the filling bag body 12, the filling bag body 12 by the first, second and third pushers 32a, 32b and 32c and the pressing members 34a, 34b and 34c. In addition to holding the three side surfaces, the filled bag body 12 can be held and transferred more reliably.
In addition, a motor 40 used to rotate the base 38 by 90 ° with respect to the carriage 30 and thus the transport table 14 is provided in the center of the base 38, details of which will be described later.
The transfer device 18 is basically configured as described above.

  The rotary cutter 20 has a rotary blade 20a that rotates, and is provided in the vicinity of one rail 16 on the side where the pusher of the transfer table 14 is not provided (the back side in the figure), and is held by the transfer device 18. The filling bag body 12 to be transported is cut by a rotating blade 20a on one side surface located on the side where the pusher is not provided (see 12a, FIG. 3 (B) and FIG. 4 (A)). Is opened so that the end face of one side surface of the filling bag body 12 remains as a lid-like body (12b, see FIGS. 4A and 4B). The rotary cutter 20 constitutes the opening means of the present invention, and the rotary blade 20a corresponds to the opening blade of the present invention. The rotary cutter 20 has a drive motor 21 that rotationally drives the rotary blade 20a as shown in FIG.

Although not shown, the rotary cutter 20 preferably has vertical movement means for moving the rotary blade 20a up and down relative to the sliding surface 14c of the transfer table 14.
It is preferable that the opening amount for opening the filling bag body 12 is determined by moving the rotary blade 20a up and down by the vertical movement means so that the relative position of the rotation blade 20a with respect to the upper surface of the filling bag body 12 is constant. As a result, the size (size) of the lid 12b is determined. The opening amount is not particularly limited, but the opening 12c can be made large, for example, the cross-sectional size of the cylindrical bag can be set, and the lid 12b is connected to the bag of the filling bag 12. It is preferable that the portion is not easily cut off, and for example, it is more preferable that the opening amount is such that the connected portion is 10 mm.
Although not shown, the rotary cutter 20 preferably has a distance meter that measures the vertical distance relative to the transfer table 14 in addition to the vertical movement means of the rotary blade 20a described above.
It is preferable to measure the thickness of the filling bag body 12 on the sliding surface 14c of the transfer table 14 with this distance meter and determine the amount of vertical movement of the rotary blade 20a by the vertical movement means.

As described above, since the filling bag body 12 is accurately positioned in the orthogonal direction b by the first pusher 32a, the rotary cutter 20 is always in the same position even if the size of the filling bag body 12 changes. The cut 12a can be made, and the vertical movement amount and / or opening amount of the rotary blade 20a can be accurately determined by using the above-described vertical movement means and / or distance meter of the rotary blade 20a. It can be opened so that the lid 12b of the same size is formed.
In the illustrated example, the rotary cutter 20 has a cut 12a at one end face of the filling bag body 12 being transferred by the transfer device 18, but the present invention is not limited to this, and the cut 12a is similarly formed. If it can be inserted, a cutter having a straight blade may be used instead of the rotary cutter 20 having the rotary blade 20a, or the rotary blade 20a or the straight blade may be moved instead of transferring the filling bag body 12. good.

Thus, when the cut 12a is made at the end of one side surface of the filling bag body 12, the rotation mechanism 36 rotates the plurality of suction cups 36a so that the plurality of suction cups 36a are filled along the cut lines 12a. The lid 12b adsorbed by the suction cup 36a as shown in FIG. 4 (B) is adsorbed on the sliding surface 14c, which is the transfer surface of the transfer table 14, as shown in FIG. Rotate upward, preferably up to a position where there is no hindrance to the insertion of the cage retainer 24, for example, upward 90 ° or more, or in a reverse direction so as to be substantially parallel to the sliding surface 14c. The lid 12b can be opened to form the opening 12c.
The opening of the lid 12b and the formation of the opening 12c by the rotating mechanism 36 may be performed immediately after the opening before the filling bag body 12 to be described later is rotated. Since the spillage can be reduced, it is preferable to carry out after the filling bag body 12 is rotated.

The motor 40 rotates the unsealed filling bag body 12 by 90 ° with respect to the transfer table 14, and as shown in FIG. 3B, the filling bag body 12 indicated by a dotted line in the drawing, that is, a rotating cutter. The base 38 is rotated by 90 ° so that the other side surface of the filling bag body 12 opened by 20, that is, the lid-like body 12 b and / or the opening 12 c faces the downstream side in the transfer direction a, that is, the first side. The filling bag body 12 held by the pressing members 34a, 34b and 34c together with the second and third pushers 32a, 32b and 32c is rotated by 90 °, and the filling bag body 12 indicated by the solid line in FIG. It is intended to be placed in a position.
The motor 40 is attached to the center of the base 38 of the transfer device 18 and constitutes the rotating means of the present invention.
In the present invention, a rotation mechanism using gears may be used instead of the motor 40. For example, as the rotation mechanism, a gear that is arranged at the approximate center of the sliding surface 14 c of the transfer table 14 on the downstream side in the transfer direction a of the rotary cutter 20 and meshes with a gear eccentrically attached to the base 38 of the transfer device 18. And a drive mechanism such as a motor for rotating the gears.

The opened filling bag body 12 has a center line passing through the center of the filling bag body 12 after being rotated by 90 ° along the transfer direction a by the second pusher 32b and the third pusher 32c. Since the motor 40 is positioned so as to coincide with the center line passing through the center of the transfer direction a of 30, the motor 40 moves the filling bag body 12 held by the pressing members 34 a, 34 b and 34 c by 90 ° together with the base 38. When rotating, the base 38 is preferably rotated with the center of the carriage 30 as the center of rotation of the base 38.
When the upper surface of the filling bag body 12 is sucked and held by the suction holding mechanism, the suction holding of the upper surface of the filling bag body 12 is canceled after the rotation by the rotation mechanism 22.

The cage holder 24 has a curved ship shape, and is installed downstream of the transfer table 14, that is, adjacent to the rear end portion 14 b, and transfers the filled bag body 12 having the opening 12 c formed thereon to the transfer device 18. By being transferred in the transfer direction a, the insertion is performed from the opening 12c of the filling bag body 12 until a preset insertion depth is reached.
The filling bag body 12 is positioned so that the center of the filling bag body 12 after the rotation process of rotating by 90 ° is aligned with the center axis of the cage holder 24, so that the first pusher If it inserts in the state which released 32a, it can insert favorably irrespective of the bag size of the filling bag body 12. FIG. Even when the first pusher 32a is not released, the three side surfaces of the filling bag body 12 by the first, second and third pushers 32a, 32b and 32c and the pressing members 34a, 34b and 34c are provided. However, it is preferable that the retention is maintained (released) when the insertion depth reaches a preset insertion depth.

  The cage-type holding tool 24 is formed by a wire, a thin round bar, or the like, so that the overall shape of the cage is a curved boat with a rough cage, and the outer surface is smooth so as not to be caught even if it contacts the inner wall surface of the filling bag body 12. In the illustrated example, a rear end portion 24a made of a linear body that swells in a semicircular arc shape, and a rear end portion 24a from the both ends of the semicircular arc shaped linear body to the front in a substantially vertical direction to the semicircular arc. A bottom portion 24b formed of a linear body swelled in a semi-elliptical arc shape, and a curve 2 upwardly curved from a tip portion of the semi-elliptical arc of the linear body of the bottom portion 24b toward an upper end portion of the semi-circular arc of the linear body of the rear end portion 24a. An upper surface portion 24c composed of two linear bodies, and two shaft portions 24d extending vertically outward from both ends of the linear body of the rear end portion 24a respectively joined to both ends of the linear body of the bottom portion 24b. Is formed.

  The filling bag body 12 is inserted into the thin tip of the cage holder 24 in a state where it is laid flat on the sliding surface 14c of the transfer table 14, and as shown in FIG. When the filling bag body 12 is inserted into the cage holder 24 so that the flat surface of the bottom surface portion 24b passes between the inner upper surface of the filling bag body 12 and the filler, the upper surface portion 24c of the cage holder 24 is obtained. The curved surface enters the upper surface of the filling of the filling bag body 12, and the two shaft portions 24d of the cage holder 24 come into contact with the opening 12c of the filling bag body 12 as shown in FIG. Then, the rear end portion 24a of the cage holder 24 is just in the opening 12c of the filling bag body 12, and the transfer of the filling bag body 12, that is, the insertion of the filling bag body 12 into the cage holder 24 is stopped. Is done. Thus, since the tip of the cage holder 24 is thin and horizontal, the filling bag body 12 can be easily inserted into the opening 12c, and the filling bag body 12 is supported just from the inside. It is a size.

The rotation mechanism 26 of the cage-type holder is connected to one shaft portion 24d of the cage-type holder 24, and rotates the cage-type holder 24 with the one shaft portion 24d as a rotation axis. It is comprised from this rotational drive part.
As shown in FIG. 5D, the rotation mechanism 26 has an angle at which the filling material in the filling bag 12 is discharged from the opening as shown in FIG. 5D, and as shown in FIG. The bag body 12A, which has been emptied after the filling is discharged, is rotated in the direction of the arrow d at an angle at which the bag body 12A is removed from the cage holder.

As shown in FIG. 5D, the rotation mechanism 26 moves the cage holder 24 in the direction of the arrow d so that the opening 12c of the filling bag body 12 into which the cage holder 24 is inserted faces substantially downward. The discharging means of the present invention has a function of rotating and stopping at a predetermined angle, for example, 50 ° to 85 °, preferably 60 ° to 70 °, and discharging the filling material in the filling bag body 12 from the opening 12c. Function as.
Since the cage holder 24 used in the present invention is not connected to the two shaft portions 24d and is opened, the filling is not caught, and the cage in the opening 12c of the filling bag 12 is also provided. Since the discharge of the filling material from the rear end 24a of the mold holder 24 is easy and occurs continuously at a time, and the replacement of the filling material and air in the filling bag body 12 is easy, The amount of the filler remaining in the empty bag body 12A can be greatly reduced, for example, from about 1 to 5% to 1% or less.

Further, as shown in FIG. 5 (E), the rotation mechanism 26 rotates the basket-type holder 24 in the direction of the arrow d by a predetermined angle, for example, 50 ° to 85 ° to stop the filling bag body 12. The cage holder 24 inserted into the bag 12A that has been emptied after the filling is discharged from the opening 12c is further rotated in the direction of arrow d, for example, by more than 180 ° from the cage holder 24. It also has a function of removing and removing the bag body 12A, and also functions as a bag body removing means of the present invention.
When removing and removing the bag body 12A from the cage holder 24, the cage holder 24 inserted in the bag body 12A in which the filling is emptied is further moved in the direction of arrow d, for example, 180 °. It is preferable that the bag body 12 </ b> A is removed from the cage-type holder 24 and removed by causing the compressed air to be ejected from the frame of the cage-type holder 24.
The bag opening device for a filling bag body of the present invention is basically configured as described above.

Next, the effect | action of the bag opening apparatus of the filling bag body of this invention and the discharge method of the cylindrical bag body filling material of this invention are demonstrated.
FIG. 6 is a flowchart showing a flow of an example of a method for discharging a cylindrical bag filling according to an embodiment of the present invention. Here, the discharge method of the cylindrical bag body filling performed in the bag opening device 10 of the filling bag body of the present invention shown in FIGS. 1 and 2 will be described as a representative example, but the present invention is not limited to this. Needless to say.

First, in step S10 (supplying step), the filling is performed on the start end portion 14a of the transfer table 14 that moves in a predetermined transfer direction a while sliding the filling bag body 12 in which the cylindrical bag body is filled with the granular filler. The bag body 12 is supplied.
Next, in step S12 (holding process), in step S10, the first pusher 32a, the second pusher 32b, the third pusher 32c, and the pressing members 34a, 34b, and 34c of the transfer device 18 serving as a holding unit are used. The supplied filling bag body 12 is held from both sides of the transfer direction a and one side of the orthogonal direction b of the transfer direction a. At this time, in the first pusher 32a and the pressing member 34a, the supply filling bag body 12 is positioned in the orthogonal direction b on the sliding surface 14c of the transfer table 14.

In step S12 (holding step), the height from the transfer surface of the transfer table 14 is raised or lowered by the carriage height adjusting means 22 so that the filling bag body 12 can be pushed, and the first pusher 32a fills the filling bag. It is preferable to perform a first sub-step (first positioning sub-process) for positioning in the orthogonal direction on the transfer table 14 by pushing one side while touching one side in the orthogonal direction b of the body 12. .
Next, in step S14 (transfer process), the filling bag body 12 positioned and held by the holding means is transferred to a transfer table by a carriage 30 that is one of the transfer means installed above the holding means of the transfer device 18. 14 is moved in the transfer direction a while sliding on.

Subsequently, in step S16 (opening step), a cut edge 12a is made by a rotary blade 20a serving as an opening blade on the other side surface in the orthogonal direction b of the filling bag body 12 being transferred in step S14, and the end surface is a lid-like body. Open to leave as 12b.
In step S16, the rotary blade 20a serving as an opening blade is moved up and down with respect to the transfer table 14 so that the relative position of the rotary blade 20a with respect to the upper surface of the filling bag body 12 is kept constant, and the filling bag body 12 is opened. It is preferred to determine the amount.
Moreover, in step S16, it is preferable to measure the thickness of the filling bag body 12 by a distance meter that measures the distance in the vertical direction with respect to the transfer table 12, and to determine the amount of vertical movement of the rotary blade 20a serving as the opening blade.

Next, in step S18 (rotation process), the filling bag body held by the holding means of the transfer device 18 is placed so that the other side surface of the filling bag body 12 opened in step S16 faces the downstream side in the transfer direction. Rotate.
Next, in step S20 (rotation process), the lid 12b of the filling bag body 12 rotated in step S18 is preferably sucked upward with respect to the sliding surface 14c serving as the transfer surface of the transfer table 14. Preferably, the opening 12c is formed by turning it to a position where there is no obstacle to the insertion of the cage holder 24, for example, upward 90 ° or more, or substantially parallel to the sliding surface 14c.

Subsequently, in step S22 (insertion step), the filling bag body 12 in which the opening 12c is formed is transferred by the transfer device 18 in the transfer direction a, and from the opening 12c of the filling bag 12 to the downstream side of the transfer table 14. The installed cage holder 24 is inserted to a preset depth.
In step S22 (insertion step), the height from the transfer surface of the transfer table 14 is adjusted to a height at which the filling bag body 12 can be pushed by the carriage height adjusting means 22, and the second pusher 32b and the third pusher 32b. The pusher 32c pushes at least one of the two side surfaces while touching at least one of the two side surfaces along the transfer direction a of the filled bag body 12 after the 90 ° rotation through the rotation process of rotating by 90 °. Second sub-step (first step) for positioning the filling bag body 12 on the transfer table 14 so that the center of the filling bag body 12 after 90 ° rotation is aligned with the center (line) of the transfer table 14 along the transfer direction a. 2 positioning sub-process) is preferably performed.

Next, in step S24 (discharge process), in step S22, the cage holder 24 is moved at a predetermined angle, for example, so that the opening 12c of the filling bag body 12 into which the cage holder 24 is inserted faces substantially downward. Preferably, it is rotated in the direction of arrow d by 50 ° to 85 °, more preferably 60 ° to 70 °, and the filling material in the filling bag body 12 is discharged from the opening 12c.
Finally, in step S26 (bag removing process), the cage holder 24 inserted into the bag 12A that has been emptied after the filling is discharged in step S24 is further moved in the direction of arrow d, for example, 180 °. The bag body 12 </ b> A is removed from the squirrel-cage holder 24 and removed by rotating beyond the range.
In step S26, the cage holder 24 inserted in the empty bag body 12A is further rotated in the direction of the arrow d, for example, by more than 180 °, and the cage holder 24 It is preferable to eject the compressed air to remove the bag body 12A from the cage holder 24 and remove it.
The method for discharging the cylindrical bag filling of the present invention is basically configured as described above.

  As described above, the method for discharging the cylindrical bag filling and the bag opening device for the filling bag according to the present invention have been described in detail. However, the present invention is not limited to the above-described embodiments and examples, and departs from the gist of the present invention. It goes without saying that various improvements or changes may be made without departing from the scope.

10 Opening device for filling bag
DESCRIPTION OF SYMBOLS 12 Filling bag body 14 Transfer table 16 Rail 18 Filling bag body transfer device 20 Rotating cutter 22 Carriage height adjusting means 24 Cage type holder 26 Cage type holder rotating mechanism 28 Wheel 30 Cars 32a, 32b, 32c Second and third pushers 34a, 34b, 34c Pushing member 36 Suction cup 38 Base 40 Motor

Claims (22)

A supply step of supplying the filling bag body on the start end portion of the transfer table that moves in a predetermined transfer direction while sliding the filling bag body filled with the granular filler in the cylindrical bag body;
The holding means holds the filling bag body supplied in the supplying step from both side surfaces in the transfer direction, and on the transfer table from one side surface in the orthogonal direction orthogonal to the transfer direction. Holding step for positioning and holding in the orthogonal direction;
A transfer step of transferring the filling bag body positioned and held by the holding means in the transfer direction while sliding on the transfer table by a transfer means installed above the holding means;
An unsealing step of opening the end face of the other side surface in the orthogonal direction of the filling bag body being transferred in the transporting step so as to leave a cut with an opening blade so that the end surface remains as a lid-like body;
A rotation step of rotating the filling bag body held by the holding means together with the holding means by 90 ° so that the other side surface of the filling bag body opened in the opening step faces the downstream side in the transfer direction; ,
A rotation step of rotating the lid-like body of the filling bag body rotated in the rotation step upward with respect to the transfer surface of the transfer table to form an opening;
The filling bag body in which the opening is formed is transferred in the transfer direction by the transfer means, and the filling bag body is set in advance in a cage-type holder installed on the downstream side of the transfer table from the opening. An insertion process to insert until the depth reaches,
The basket-type holder is rotated by a predetermined angle so that the opening of the filling bag body inserted into the cage-type holder in the insertion step is directed substantially downward, and the filling material in the bag body is A discharge process for discharging from the opening;
The bag body in which the bag-type holder inserted into the bag body that has been emptied by discharging the filler in the discharging step is further rotated to remove and remove the bag body from the cage-type holder. A method for discharging the cylindrical bag filling, comprising: a removal step. The holding means is
It is installed above the transfer table, holds the filling bag body from the upper side thereof, is installed in the transfer means, and is moved in the transfer direction by the transfer means,
A first pusher that pushes one side of the filling bag body;
A second pusher that pushes one side surface of two side surfaces orthogonal to the one side surface of the filling bag body;
A third pusher that pushes the other side surface of the two side surfaces of the filling bag body;
The holding step includes
Positioning in the orthogonal direction on the transfer table is performed by pressing the one side surface while touching the one side surface in the orthogonal direction with the transfer direction of the filling bag body by the first pusher. A positioning sub-process,
The insertion step includes
By pressing at least one of the two side surfaces while touching at least one of the two side surfaces along the transfer direction of the filling bag body with the second pusher and the third pusher, the filling bag body Positioning the filling bag body in the transfer direction on the transfer table so that the center of the filling bag body after the rotation step of rotating the sheet 90 ° is aligned with the center of the transfer table along the transfer direction. The method for discharging a cylindrical bag filling according to claim 1, further comprising a second positioning sub-step.   The first pusher, the second pusher, and the third pusher are respectively provided with pressing members that are pressed against the one side surface of the filling bag body and the two side surfaces of the filling bag body, respectively. The method for discharging the cylindrical bag filling according to claim 2.   The said holding | maintenance means is installed above the said transfer table, The height from the said transfer table is adjustable, The discharge method of the cylindrical bag body filling of any one of Claims 1-3.   The bag body removing step further rotates the cage-type holder inserted in the bag body in which the filling is emptied, and jets compressed air from the cage-type holder, The method for discharging the cylindrical bag body filling according to any one of claims 1 to 4, wherein the bag body is removed from the cage holder and removed.   The method for discharging a cylindrical bag filling according to any one of claims 1 to 5, wherein the cage holder has a curved ship shape.   The method for discharging a cylindrical bag filling according to any one of claims 1 to 6, wherein the opening blade is a motor-driven circular rotary blade.   In the unsealing step, the unsealing amount for unsealing the filling bag body is determined by moving the unsealing blade up and down with respect to the transfer table to make the relative position of the unsealing blade with respect to the upper surface of the filling bag body constant. The discharge method of the cylindrical bag body filling of any one of 1-7.   In the said opening process, the thickness of the said filling bag body is measured with the distance meter which measures the distance of the up-down direction with respect to the said transfer table, The up-and-down movement amount of the said opening blade is determined in any one of Claims 1-8. A method for discharging the cylindrical bag filling described.   The said rotation process attracts | sucks the said lid-shaped body of the said filling bag body, and rotates it to the position which does not have an obstruction | interruption in the insertion of the said cage-type holder. A method for discharging the cylindrical bag filling according to claim 1.   The said predetermined angle which rotates the said cage | basket-type holder in the said discharge | emission process is 60 degrees-70 degrees, The discharge method of the cylindrical bag body filling of any one of Claims 1-10. A bag opening device for opening a filling bag body filled with a granular filler in a cylindrical bag body and discharging the filling material in the filling bag body from an opening of the filling bag body,
A transfer table for transferring the filling bag body in a predetermined transfer direction while sliding;
The filling bag body supplied on the starting end of the transfer table is held from both side surfaces in the transfer direction, and on the transfer table from one side surface in the orthogonal direction perpendicular to the transfer direction. Holding means for positioning and holding in the orthogonal direction;
A transfer means installed above the holding means and transferring the filling bag body positioned and held by the holding means in the transfer direction while sliding on the transfer table;
An unsealing means comprising an unsealing blade for making a cut in an end face of the other side surface in the orthogonal direction of the filling bag body being transferred by the transferring means, and opening the end face so as to remain as a lid-like body;
Rotating means for rotating the filling bag body held by the holding means by 90 ° together with the holding means so that the other side surface of the filling bag body opened by the opening means faces the downstream side in the transfer direction; ,
Rotation means for rotating the lid-like body of the filling bag body rotated by the rotation means upward with respect to the transfer surface of the transfer table to form the opening;
The filling bag body, which is installed on the downstream side of the transfer table and in which the opening is formed, is transferred in the transfer direction by the transfer means to have a preset depth from the opening of the filling bag body. A cage holder inserted until
The cage-type holder is rotated by a predetermined angle so that the opening of the filling bag body into which the cage-type holding tool is inserted faces substantially downward, and the filling material in the bag body is discharged from the opening. Discharging means to perform,
A bag body that removes and removes the bag body from the cage holder by further rotating the cage holder inserted in the bag body that has been emptied by the filling material being discharged by the discharging means. And a removing means for opening the bag. The holding means is
It is installed above the transfer table, holds the filling bag body from the upper side thereof, is installed in the transfer means, and is moved in the transfer direction by the transfer means,
A first pusher that pushes one side of the filling bag body;
A second pusher that pushes one side surface of two side surfaces orthogonal to the one side surface of the filling bag body;
A third pusher that pushes the other side surface of the two side surfaces of the filling bag body;
The first pusher performs positioning in the orthogonal direction on the transfer table by pushing the one side surface while touching the one side surface in the orthogonal direction with the transfer direction of the filling bag body,
Pushing at least one of the two side surfaces while touching at least one of the two side surfaces along the transfer direction of the filling bag body after being rotated 90 ° by the second pusher and the third pusher. Thus, the center of the filling bag body after rotating the filling bag body by 90 ° is aligned with the center of the transfer table along the transfer direction in the transfer direction of the filling bag body on the transfer table. The bag opening device for a filled bag according to claim 12, wherein positioning is performed.   The first pusher, the second pusher, and the third pusher are respectively pressed against the one side surface of the filling bag body and the two side surfaces of the filling bag body in the transfer direction. The bag opening device for a filling bag body according to claim 12 or 13, comprising a pressing member.   15. The bag opening device for a filling bag body according to any one of claims 12 to 14, wherein the holding means is installed above the transfer table and is adjustable in height from the transfer table.   The bag body removing means further rotates the cage-type holder inserted in the bag body in which the filling is emptied, and jets compressed air from the cage-type holder, The bag opening device for a filling bag body according to any one of claims 12 to 15, wherein the bag body is detached and removed from the cage holder.   The bag opening device for a filling bag body according to any one of claims 12 to 16, wherein the cage holder has a curved ship shape.   The filling bag body opening device according to any one of claims 12 to 17, wherein the opening blade is a circular rotary blade driven by a motor.   The opening means has the up-and-down moving means for moving the opening blade up and down with respect to the transfer table, and the opening blade is moved up and down by the up-and-down moving means to make the opening blade relative to the upper surface of the filling bag body. The bag opening device for a filling bag body according to any one of claims 12 to 18, wherein an opening amount for opening the filling bag body is determined with a fixed position.   The opening means includes a distance meter that measures a distance in the vertical direction with respect to the transfer table, and the vertical movement means that moves the opening blade up and down relative to the transfer table. The bag opening device for a filling bag body according to any one of claims 12 to 19, wherein a thickness is measured and an amount of vertical movement of the opening blade by the vertical movement means is determined.   The rotating means includes an adsorbing means for adsorbing the lid-like body of the filling bag body, and the lid-like body adsorbed by the adsorbing means is moved to a position where there is no obstacle to the insertion of the cage holder. The bag opening device for a filling bag body according to any one of claims 12 to 20, wherein the bag opening device is rotated.   The opening device for a filling bag body according to any one of claims 12 to 21, wherein the predetermined angle by which the discharging means rotates the cage retainer is 60 ° to 70 °.

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